Seasonal Variation in Responses of Largemouth Bass (Micropterus nigricans) Caught During Live-Release Angling Tournaments

IF 2 3区农林科学 Q2 FISHERIES

Fisheries Management and Ecology Pub Date : 2025-01-19 DOI:10.1111/fme.12785

Allison A. Hay, Reagan E. Oller, Jackson C. Glomb, Cory D. Suski

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Abstract

Traditional live-release tournament practices can influence habitat selection and cause displacement, stockpiling, and mortality. Tournaments are held in multiple seasons in a variety of environmental conditions, yet the seasonal influence on post-release behavior has rarely been studied. To quantify dispersal, habitat selection, and mortality of largemouth bass (Micropterus nigricans) caught in live-release tournaments in multiple seasons, movements of tournament-caught largemouth bass and non-angled controls implanted with acoustic telemetry tags were monitored from April–September for 2 months. Short-term stockpiling at the release point averaged 5–7 days and differed minimally among seasons. Mortality rates varied among seasons, in contrast, with nearly 12-fold higher mortality in late-season tournaments at higher water temperatures. If tournament pressure is intense enough, populations could be negatively impacted, thereby necessitating management actions to reduce tournament impacts over the longer term.

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在现场放生钓鱼比赛中捕获的大口黑鲈（Micropterus nigricans）反应的季节变化

传统的放生比赛做法会影响栖息地的选择，并导致流离失所、储存和死亡。比赛在不同的环境条件下在多个季节举行，但季节对释放后行为的影响却很少被研究。为了量化多季节实况放生比赛中捕获的大口黑鲈（Micropterus nigricans）的扩散、栖息地选择和死亡率，从4月至9月对比赛捕获的大口黑鲈和植入声学遥测标签的无角度对照进行了为期2个月的监测。释放点的短期库存平均为5-7天，不同季节的差异最小。相比之下，死亡率因季节而异，在较高水温的季末比赛中，死亡率高出近12倍。如果比赛的压力足够大，人口可能会受到负面影响，因此有必要采取管理措施来减少长期比赛的影响。

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来源期刊

Fisheries Management and Ecology 农林科学-渔业

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

12-24 weeks

期刊介绍： Fisheries Management and Ecology is a journal with an international perspective. It presents papers that cover all aspects of the management, ecology and conservation of inland, estuarine and coastal fisheries. The Journal aims to: foster an understanding of the maintenance, development and management of the conditions under which fish populations and communities thrive, and how they and their habitat can be conserved and enhanced; promote a thorough understanding of the dual nature of fisheries as valuable resources exploited for food, recreational and commercial purposes and as pivotal indicators of aquatic habitat quality and conservation status; help fisheries managers focus upon policy, management, operational, conservation and ecological issues; assist fisheries ecologists become more aware of the needs of managers for information, techniques, tools and concepts; integrate ecological studies with all aspects of management; ensure that the conservation of fisheries and their environments is a recurring theme in fisheries and aquatic management.